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Journal of Mathematical Inequalities最新文献

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Boundedness from below of composition operators between $L^p_a$ and $L^q_a$, between $L^p_a$ and the Hardy space $H^2$, between $L^p_a$ and Besov space $L^p_a$与$L^q_a$之间、$L^p_a$与Hardy空间$H^2$之间、$L^p_a$与Besov空间之间复合算子的自下有界性
IF 2.9 3区 数学
Journal of Mathematical Inequalities Pub Date : 2023-01-01 DOI: 10.7153/jmi-2023-17-21
R. Yoneda
{"title":"Boundedness from below of composition operators between $L^p_a$ and $L^q_a$, between $L^p_a$ and the Hardy space $H^2$, between $L^p_a$ and Besov space","authors":"R. Yoneda","doi":"10.7153/jmi-2023-17-21","DOIUrl":"https://doi.org/10.7153/jmi-2023-17-21","url":null,"abstract":"","PeriodicalId":49165,"journal":{"name":"Journal of Mathematical Inequalities","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Lyapunov-type inequality for a class of higher-order fractional boundary value problems 一类高阶分数边值问题的lyapunov型不等式
IF 2.9 3区 数学
Journal of Mathematical Inequalities Pub Date : 2023-01-01 DOI: 10.7153/jmi-2023-17-29
Şuayip Toprakseven
{"title":"A Lyapunov-type inequality for a class of higher-order fractional boundary value problems","authors":"Şuayip Toprakseven","doi":"10.7153/jmi-2023-17-29","DOIUrl":"https://doi.org/10.7153/jmi-2023-17-29","url":null,"abstract":". This work presents a new Lyapunov-type inequality for a class of higher-order fractional boundary value problem of the fractional Caputo Fabrizio differential equation subject to fractional integral boundary conditions. The derived result is applied to the fractional Sturm-Liouville problem in establishing a lower bound for the eigenvalues. We also provide the necessary condition for nonexistence of the non-trivial solution of the fractional boundary value problem.","PeriodicalId":49165,"journal":{"name":"Journal of Mathematical Inequalities","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A theorem and an algorithm involving Muirhead's inequality 一个涉及穆尔黑德不等式的定理和算法
IF 2.9 3区 数学
Journal of Mathematical Inequalities Pub Date : 2023-01-01 DOI: 10.7153/jmi-2023-17-38
Xu Jia, Yongwei Yao, Xiao Ling Qin
{"title":"A theorem and an algorithm involving Muirhead's inequality","authors":"Xu Jia, Yongwei Yao, Xiao Ling Qin","doi":"10.7153/jmi-2023-17-38","DOIUrl":"https://doi.org/10.7153/jmi-2023-17-38","url":null,"abstract":". Let a , b ∈ R n be column vectors, and ( u , v ) be the inner product of vectors u and v on R n . Let G ⊂ GL ( n , R ) be a compact matrix group. For A ∈ G and a continue function f on G , the integral (cid:2) G f ( A ) dA is the invariant integral of the compact group G . In this paper, we study the inequality","PeriodicalId":49165,"journal":{"name":"Journal of Mathematical Inequalities","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mean square of quadratic Hecke character sum 二次赫克字符和的均方
IF 2.9 3区 数学
Journal of Mathematical Inequalities Pub Date : 2023-01-01 DOI: 10.7153/jmi-2023-17-43
Zi ei Hong, Zhiy ng Zheng
{"title":"Mean square of quadratic Hecke character sum","authors":"Zi ei Hong, Zhiy ng Zheng","doi":"10.7153/jmi-2023-17-43","DOIUrl":"https://doi.org/10.7153/jmi-2023-17-43","url":null,"abstract":"","PeriodicalId":49165,"journal":{"name":"Journal of Mathematical Inequalities","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Remarks on the stability of the 3-variable functional inequalities of Drygas 关于Drygas三变量泛函不等式稳定性的注解
IF 2.9 3区 数学
Journal of Mathematical Inequalities Pub Date : 2023-01-01 DOI: 10.7153/jmi-2023-17-47
J. Senasukh, S. Saejung
{"title":"Remarks on the stability of the 3-variable functional inequalities of Drygas","authors":"J. Senasukh, S. Saejung","doi":"10.7153/jmi-2023-17-47","DOIUrl":"https://doi.org/10.7153/jmi-2023-17-47","url":null,"abstract":". We give some remarks on the recent paper [ J. Math. Inequal. 13 (4) (2019), 1235– 1244]. Some misleading conclusions of their stability results are carefully discussed and corrected. Moreover, we reestablish their results with a more general assumption and a stronger conclusion. Mathematics","PeriodicalId":49165,"journal":{"name":"Journal of Mathematical Inequalities","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the spectral norms of r-circulant and geometric circulant matrices with the bi-periodic hyper-Horadam sequence 双周期hyper-Horadam序列下r-循环矩阵和几何循环矩阵的谱范数
3区 数学
Journal of Mathematical Inequalities Pub Date : 2023-01-01 DOI: 10.7153/jmi-2023-17-55
Nassima Belaggoun, Hacéne Belbachir
{"title":"On the spectral norms of r-circulant and geometric circulant matrices with the bi-periodic hyper-Horadam sequence","authors":"Nassima Belaggoun, Hacéne Belbachir","doi":"10.7153/jmi-2023-17-55","DOIUrl":"https://doi.org/10.7153/jmi-2023-17-55","url":null,"abstract":"","PeriodicalId":49165,"journal":{"name":"Journal of Mathematical Inequalities","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136373424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Asymptotic expansion for generalized Mathieu series 广义Mathieu级数的渐近展开式
3区 数学
Journal of Mathematical Inequalities Pub Date : 2023-01-01 DOI: 10.7153/jmi-2023-17-72
Xin Lin, Chang in Deng
{"title":"Asymptotic expansion for generalized Mathieu series","authors":"Xin Lin, Chang in Deng","doi":"10.7153/jmi-2023-17-72","DOIUrl":"https://doi.org/10.7153/jmi-2023-17-72","url":null,"abstract":"","PeriodicalId":49165,"journal":{"name":"Journal of Mathematical Inequalities","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136373482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On some sufficient conditions for p-valently starlikeness 关于p价星形的几个充分条件
IF 2.9 3区 数学
Journal of Mathematical Inequalities Pub Date : 2023-01-01 DOI: 10.7153/jmi-2023-17-01
M. Nunokawa, J. Sokół
{"title":"On some sufficient conditions for p-valently starlikeness","authors":"M. Nunokawa, J. Sokół","doi":"10.7153/jmi-2023-17-01","DOIUrl":"https://doi.org/10.7153/jmi-2023-17-01","url":null,"abstract":". In this paper we prove some properties for functions that are multivalent in the unit disc | z | < 1 in the complex plane. As a corollary we obtain that if f ( z ) is p -valent, p (cid:2) 10, and (cid:2)(cid:2)(cid:2) arg (cid:3) f ( p ) ( z ) (cid:4)(cid:2)(cid:2)(cid:2) < π in | z | < 1, then f ( z ) is p -valent starlike.","PeriodicalId":49165,"journal":{"name":"Journal of Mathematical Inequalities","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71165871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Generalization of some unitarily invariant norm inequalities for matrices 矩阵的一些酉不变范数不等式的推广
IF 2.9 3区 数学
Journal of Mathematical Inequalities Pub Date : 2023-01-01 DOI: 10.7153/jmi-2023-17-37
Ahmad Al-Natoor, M. Amleh, Baha' Abughazaleh, Aliaa Burqan
{"title":"Generalization of some unitarily invariant norm inequalities for matrices","authors":"Ahmad Al-Natoor, M. Amleh, Baha' Abughazaleh, Aliaa Burqan","doi":"10.7153/jmi-2023-17-37","DOIUrl":"https://doi.org/10.7153/jmi-2023-17-37","url":null,"abstract":". In this paper, we prove new unitarily invariant norm inequalities for positive semidefinite matrices. Some of these inequalities represents a generalization of earlier work due to Kittaneh who re fi nes an inequality due to Davidson and Power which is useful in best approximation of C ∗ -algebras.","PeriodicalId":49165,"journal":{"name":"Journal of Mathematical Inequalities","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new partial order based on core partial order and star partial order 基于核偏序和星形偏序的一种新的偏序
IF 2.9 3区 数学
Journal of Mathematical Inequalities Pub Date : 2023-01-01 DOI: 10.7153/jmi-2023-17-35
Yang Zhang, Zongy ng Jiang
{"title":"A new partial order based on core partial order and star partial order","authors":"Yang Zhang, Zongy ng Jiang","doi":"10.7153/jmi-2023-17-35","DOIUrl":"https://doi.org/10.7153/jmi-2023-17-35","url":null,"abstract":". In this paper, we introduce a new partial order called CS partial order, which is based on the core partial order and star partial order. We give some characteristics of CS partial order by using polar decomposition. Then we apply the polar-like decomposition to introduce another new partial order called WC (weak CS) partial order, which is an extension of the CS partial order. We illustrate the relationships of the two partial orders with some well-known partial orders, such as minus, L¨owner, GL, CL partial order. At the end of the paper, the application of CS and WC partial orders is brie fl y discussed from the perspective of quantum physics.","PeriodicalId":49165,"journal":{"name":"Journal of Mathematical Inequalities","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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